If anyone extols Allah after every prayer thirty-three times, and praises Allah thirty-three times, and declares His Greatness thirty-three times, ninety-nine times in all, and says to complete a hundred:" There is no god but Allah, having no partner with Him, to Him belongs sovereignty and to Him is praise due, and He is Potent over everything," his sins will be forgiven even If these are as abundant as the foam of the sea.  

عَنْ رَسُولِ اللَّهِ ﷺ مَنْ سَبَّحَ اللَّهَ فِي دُبُرِ كُلِّ صَلاَةٍ ثَلاَثًا وَثَلاَثِينَ وَحَمِدَ اللَّهَ ثَلاَثًا وَثَلاَثِينَ وَكَبَّرَ اللَّهَ ثَلاَثًا وَثَلاَثِينَ فَتِلْكَ تِسْعَةٌ وَتِسْعُونَ وَقَالَ تَمَامَ الْمِائَةِ لاَ إِلَهَ إِلاَّ اللَّهُ وَحْدَهُ لاَ شَرِيكَ لَهُ لَهُ الْمُلْكُ وَلَهُ الْحَمْدُ وَهُوَ عَلَى كُلِّ شَىْءٍ قَدِيرٌ غُفِرَتْ خَطَايَاهُ وَإِنْ كَانَتْ مِثْلَ زَبَدِ الْبَحْرِ  

[Machine] I heard the messenger of Allah ﷺ say: "Whoever says, 'There is no god but Allah and Allah is the Greatest, all praise is due to Allah, and glory be to Allah, and there is no power or strength except with Allah', his sins will be forgiven even if they are as much as the foam of the sea."  

سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ مَنْ قَالَ لَا إِلَهَ إِلَّا اللهُ وَاللهُ أَكْبَرُ وَالْحَمْدُ لِلَّهِ وَسُبْحَانَ اللهِوَلَا حَوْلَ وَلَا قُوَّةَ إِلَّا بِاللهِ كُفِّرَتْ ذُنُوبُهُ وَإِنْ كَانَتْ مِثْلَ زَبَدِ الْبَحْرِ  

the Messenger of Allah ﷺ said: “there is not anyone upon the earth who says: ‘None has the right to be worshipped but Allah, and Allah is the Greatest, and there is no might nor power except by Allah, (Lā ilāha illallāh, wa Allāhu akbar, wa lā ḥawla wa lā quwwata illā billāh) except that his sins shall be pardoned, even if they were like the foam of the sea.” (Using translation from Tirmidhī 3460)   

عَنْ رَسُولِ اللهِ ﷺ قَالَ مَا عَلَى الْأَرْضِ رَجُلٌ يَقُولُ لَا إِلَهَ إِلَّا اللهُ وَاللهُ أَكْبَرُ وَسُبْحَانَ اللهِ وَالْحَمْدُ لِلَّهِ وَلَا حَوْلَ وَلَا قُوَّةَ إِلَّا بِاللهِ إِلَّا كَفَّرَتْ عَنْهُ مِنْ ذُنُوبِهِ وَإِنْ كَانَتْ مِثْلَ زَبَدِ الْبَحْرِ  

[Machine] He (Abu Dharr Al-Ghifari, companion of the Messenger of Allah, ﷺ ) heard him (the Messenger of Allah) saying words that whoever mentions them a hundred times after every prayer, Allah is greater, and glory be to Allah, and praise be to Allah, and there is no god but Allah alone, with no partner or associate, and there is no power or might except with Allah. Then, even if his sins were as much as the foam of the sea, they would be forgiven. Abu Abdurrahman said: My father did not mention the phrase "raise him."  

أَنَّهُ سَمِعَ أَبَا ذَرٍّ الْغِفَارِيَّ صَاحِبَ رَسُولِ اللهِ ﷺ يَقُولُ كَلِمَاتٌ مَنْ ذَكَرَهُنَّ مِائَةَ مَرَّةٍ دُبُرَ كُلِّ صَلَاةٍ اللهُ أَكْبَرُ وَسُبْحَانَ اللهِ وَالْحَمْدُ لِلَّهِ وَلَا إِلَهَ إِلَّا اللهُ وَحْدَهُ لَا شَرِيكَ لَهُ وَلَا حَوْلَ وَلَاقُوَّةَ إِلَّا بِاللهِ ثُمَّ لَوْ كَانَتْ خَطَايَاهُ مِثْلَ زَبَدِ الْبَحْرِ لَمَحَتْهُنَّ قَالَ أَبُو عَبْدِ الرَّحْمَنِ قَالَ أَبِي لَمْ يَرْفَعْهُ  

from the Prophet ﷺ : "Whoever says when he retires to his bed, 'There is no God but Allah alone without any partners, to Him belong the dominion and praise and He is powerful over all things, there is no movement or might but in Allah, glory be to Allah and all praise is due to Allah, there is not God but Allah, and Allah is the greatest, then Allah will forgive his sins even if they were like the foam of the sea."  

عَنِ النَّبِيِّ ﷺ قَالَ «مَنْ قَالَ حِينَ يَأْوِي إِلَى فِرَاشِهِ لَا إِلَهَ إِلَّا اللَّهُ وَحْدَهُ لَا شَرِيكَ لَهُ لَهُ الْمُلْكُ وَلَهُ الْحَمْدُ وَهُوَ عَلَى كُلِّ شَيْءٍ قَدِيرٌ لَا حَوْلَ وَلَا قُوَّةَ إِلَّا بِاللَّهِ سُبْحَانَ اللَّهِ وَالْحَمْدُ لِلَّهِ وَلَا إِلَهَ إِلَّا اللَّهُ وَاللَّهُ أَكْبَرُ غَفَرَ اللَّهُ ذُنُوبَهُ أَوْ خَطَايَاهُ شَكَّ مِسْعَرٌ وَإِنْ كَانَ مِثْلَ زَبَدِ الْبَحْرِ»  

"مَنْ قَال: لَا إِلهَ إِلا الله، وَحْدَهُ لا شَرِيكَ لَهُ، لَهُ الْمُلْكُ وَلَهُ الْحَمْدُ، وَهُوَ عَلَي كُلِّ شَيء قَدِيرٌ، وَلا حَوْلَ وَلا قُوَّةَ إِلا بِالله، وَسُبْحَانَ الله وَبِحَمْدهِ، وَالْحَمْدُ لله، وَلَا إِلَهَ إِلا الله، والله أَكْبَرُ، حُطَّتْ خَطَايَاهُ وَإِنْ كَانَتْ مِثْلَ زَبَدِ الْبَحْرِ" .  

"تدْرُونَ مَا البَاقِيَاتُ الصَّالِحَاتُ؟ سُبحَانَ اللهِ، وَالحَمْدُ للهِ، وَلَا إِله إِلَّا اللهُ، وَاللهُ أكبَرُ، وَلَا حَوْلَ وَلَا قُوَّةَ إِلَّا باللهِ".